Endocrine Abstracts

Transthyretin (TTR) is a protein mainly synthesized by the liver and choroid plexus (CP) of the brain. Besides its role as a carrier for thyroid hormones, TTR also sequesters the amyloid beta (Aβ) peptide impairing its deposition in nervous tissues, and its concentrations in the cerebrospinal fluid (CSF) appear to be inversely correlated with Alzheimer’s disease (AD) onset and progression. Abundant evidence suggests that the depletion of progesterone (PROG) at menopa...

Background: Incidental discovery of an adrenal mass (AM) presents a common finding in patients with a history of extraadrenal malignant tumour. Discerning malignancy in AM is based on radiology (Rx) and scintigraphic (Sx) criteria, and finally fine-needle aspiration biopsy (FNA) of the tissue.Objective: Determine the concordance of Rx and Sx techniques in patients with an AM and previous oncologic history.Materials and methods: We ...

Cyclic Cushing’s disease is a rare situation due to episodic hypersecretion of ACTH. Suspicion is raised when strong clinical stigmata occur, with normal basal values of cortisol and normal responses to dynamic tests. After performing several tests, particularly during phases without symptoms (well-being), the probability of successful diagnosis increases.We describe the case of a 33 years old female patient with full-blown clinical picture (weight ...

Background: The lack of circadian rhythm is a marker of Cushing’s syndrome (CS). Therefore, salivary cortisol rhythm has been suggested for studies on the hypothalamic–pituitary–adrenal (HPA) axis. Late-night salivary cortisol has been used recently by many centers as a first line diagnostic test for CS, yet its accuracy is still on debate.Aim: To evaluated the performance of morning and late night salivary cortisol in patients with CS and...

Backgroud: Primary hyperparathyroidism is the most common cause of hypercalcemia, which is associated with an increased frequency of hypertension. However, there are no data on the prevalence of primary hyperparathyroidism in patients who present with hypertension.Clinical case: We present the case of a 40-year-old woman with a history of hypertension for ten years. In 2017 she was referred for evaluation of hypercalcemia. The patient denied any symptoms...

IntroductionThe malignancy risk of an adrenal nodule is based on clinical symptoms (rapid onset of hypercortisolism and hyperandrogenism; mass symptoms) and imaging characteristics. These suspicious criteria include boundary irregularities, heterogeneity, dimension>6 cm and density>20 HU (CT). However, these are not absolute criteria.Case reportWe report the case of a 43 years-old female patient with a histor...

Introduction: COVID-19 has taken on pandemic proportions. Phase angle (PhA) and Standardized phase angle (SPhA) have been related to mortality and severity in several diseases.Objetives: To determine the predictive role of PhA and SPhA on 90 days survival of adults with COVID-19.Methods: A longitudinal cohort study with 127 consecutive patients diagnosed with COVID-19. We collected PhA, SPhA, body composition (fat mass, fat free ma...

Introduction: The parathyroid gland is made up of principal cells and oxyphilic cells, surrounded by stroma, whose main component is adipose tissue, which accounts for 25% of the content of the parathyroid in adults. In parathyroid adenomas, prominent parathyroid cellularity can be observed, with a very marked decrease in the stroma. Parathyroid lipoadenoma is a rare variant of parathyroid adenoma, characterized by hyperfunctioning parathyroid cells in an abundant fatty stroma...

Introduction: Insulinomas are pancreatic neuroendocrine tumors (PNET), characterized by insulin hypersecretion syndrome with the development of hypoglycemia. The incidence of the tumor is 3-10 cases per million inhabitants. The average age of onset is 40-50 years old, being more frequent in women. Case Reports: We present a clinical case of a patient with CREST syndrome and difficult-to-control hypoglycemia. Female patient, 81 years old, with a history o...

Introduction and objectives: Metformin (MTF) is the most used oral antidiabetic drug for the treatment of type 2 diabetes (T2D). However, intolerance to drug is frequent and limits its use. There are controversies about the cause of this problem, the gut microbiota has been proposed to be responsible. The gradual introduction of MTF could exercise an adaptation of gut microbiota that would facilitate tolerance to MTF. In this study we evaluate the metabolic changes and gut mic...